Bloody Monday - A brilliant high school hacker, Fujimaru Takagi (Haruma Miura), gets drafted by the Japanese equivalent of the FBI(Third-I), to help them stop a group of terrorists intending to attack Tokyo with a biological weapon. When his friends and family members come under attack, Fujimaru realizes the seriousness of the situation he has been asked to participate in. A race against time begins as he helps the Third-I track down those responsible for the impending attack while the true purpose of the terrorist\'s plan comes to light.